... , sunflower seeds, coconuts and grass seeds, etc.Oil press FeatureThey are most suitable for small and medium ... they can be used for prepressing in submerging oil workshops.This oil press machine is composed of feeder, gearbox ... machine stand etc.- This kind of screw oil presses utilizes the screw shaft which is set ... push the material into chamber.Then the oil is separated out through the extrusion of ...